Milk-bottle and cap.



W. l. DAVIS.

MILK BOTTLE AND CAP. APPLICATION FILED APR. 1e. 19!].

Patented Sept. 17,191&

WILLIAM J. DAVIS, OF CHIGAGd, ILLINOIS.

-. MILK-BOTTLE Ann car,

Application filed ril 16, 1917. serial ltd 162,273.

To all whom it may concern:

-Be it known that I, WILLIAM J. DAVIS, a citizen of the United States,and a'resident of Chicago, in the county of Cook and State of Illinois,have invnted certain new and useful Improvements in Milk-Bottles andCaps, of which the following is a full, clear, and exact specification.I

My invention is concerned with improvements in milk bottles and capstherefor, and

is designed primarily to produce a bottle of. the class described with acheap and practical cap, so designed and constructed that when the capis removed, the contents of the bottle can be readily poured out withoutpermitting them to come in contact with any portion. of the bottle thathas not been protected by the cap.

My invention is further concernedwith a bottle of the class described,provided with a cap so constructed that the air which would tend to becompressed -in the hollow of the can is released until the cap comes incontact with the mouth ofthe bottle and the sealing is completed. I

My invention is further concerned with a bottle having a novel bottomwhich is de signed to be more easily washed by machinery than are thebottles heretofore used.

To illustrate my invention, I annex hereto a sheet of drawings in which.the same reference characters are used .to designate identical parts inall the figures, of, which- Figure 1 is a central vertical sectionthrough the bottle showing the cap in place;

Fig. 2 is a side elevation of the preferred form of the cap with aportion thereof broken away and in central section, to show the sealingcut;

F 3 is a top plan View of the cap;

Fig. 4 is. a central vertical section of a thickness of the edge 9 issecured by foldmg modified form of the cap;

Fig. 5 is a and v Fig. 6 is a view of the month without the cap.

The eneral shape of the body of the bottle a embm iying my invention isthat of the customary milk bottle, although it will be understood thatthe invention is not necessarily confined to bottles of. this generalshape. The bottom I), however, is differently designed in that thecorners are rounded oif by a considerable curve, and the center of thebottom is occupied by the protuberance.

c, which it will-be noted is connected by a top plan View of the same;

Specification of Letters Patent. I Patented Sept 17, I

continuously 'concaved surface with the rounded corners, so that when ajet of water is directed into'the center of the bottle, as occurs insome forms of bottle-'washing-machines, the jet of water will strike onthe point of the-protuberance c and be deflected along the concavedsurfaces, thus washingout the bottom and the corners much moreeffectively than is possible where the center of the bottom of thebottle is flat, as in that case, the water striking the bottle tends torebound and does not necessarily flow into the' corners. This, ofcourse, is especially true where the bottles have the water thrown intothem their inverted position, as is sufli'cient distance to make thedeep andv narrow annular channel f, which annular channel is adapted toreceive the annular edge 9 of the cup-shaped cap h, which is of theproper size'and thickness shown, so that when the cap is forced downover the mouth of the bottle, as shown in Fig. 1, the edge 9 thereofwill enter the recess f, and I hold the cap securely in place againstany accidental removal. These caps are prlncipally constructed if somevegetable fiber, such as pasteboard, straw-board, etc., and in the pre-'ferred form shown in Figs. 2 and 3, the annular walls of the cap areformed by cor rugating and pressing them into shape from the flat diskfrom which the cap is formed.

In the modification shown in Fig. 4:, the

back an annular portion 9' of the cap, the two folds inthis case beingthick enough to fill the channel.

100. With the corrugated 1 form shown in Figs. 2 and 3, the natural jtendency of the folded ortion to expand helps to keep the cap in place.V Where .the interior of the cap is substantially cylindrical,necessitating a cylindrical exterior of the flange d, it becomes neces-'sary to make some provision for the escape of the air that tends to beconfined-between the cap and the top of the contents of the bottle, assoon as the edge of the cap is started in its downward movement over theflange d, and for this purpose I preferably provide the semicircularcuts in at the proper point in the top 'of the cap, and when these cutsare made, the tongue Z resulting therefrom is forced down into theinterior of the cap enough so that there is a free passage for the airto escape as the 'cap is shoved down into place. These caps arepreferably coated with paraflin, and it will be obvious that as the cap.is rammed home,.as it appears in Fig. 1, the outer .end of the tongue 1will engage the upper edge of the flange d and be forced up into itsclosed position, the parafiin acting as the sealing agent suflicientlyto make the closure air-tight when the ca is in place. I

Wit these caps having the cylindrical outline, it is possible to placethem one above the other, without their nesting, in the sup ply tube ofa bottle capping machine, whence they can be fed by a pushing strokeover the top of the bottle in the same manner as are the ordinary capsnow in use.

To. facilitate the removal of the caps from the bottle, and alsoto makesure that they cannot expand at the bottom sufliciently so as to overlapthe top of the cap below in the supply pipe of a bottle capping machine,I may form the folded annular flange m, seen in Fig. 4, and it will beunderstood that with the. thinner material shown in this form it iseasier to form the flanges m.

. While'I have shown and described my invention as embodied in the formwhich I at present consider best adapted to carry out its purpose, itW111 be understood that it is capable of some modifications, and that Idonot desire to be limited in the interpretation of I the followingclaims, except as may be necessitated by the-state of the prior art.

What I claim as new, and desire to secure 7 by Letters Patent of theUnited States is:

1. In a bottle and cap, the combination with a bottle having anelongated, generally cylindrical exteriorv sealingsurface just be-- asto be engaged and closed thereby when it is brought in contacttherewitln 1 2. In a bottle and cap, the combination side portion,

drical fibrous cap having its disk-like top adapted to rest on the top,of the pouring flange and its annular bottom flange adapted to enter andbe forced in it to close tightly by itself the entire annularrecessformed between the two flanges to hold the cap from expanding andsecure it in place simply by a downward movement, and to be removed by asimple upward movement without destroying either the bottle or the cap.

3. The combination with a glazed bottle adapted for repeated use havinga narrow high annular flange at its mouth over which. its. contents arepoured without-coming in contact with the second flange, and a secondannular cap-securing flange outside of the first and at a substantiallylower level, the

two flanges between them forming a narrow vertically disposed channel,the lower por-' tion of which is the same width throughout but narrowerthan the thickness of either flange and into which the edge of a coverinclosing the inner flange may be forcedby a direct downward movementalong-the axis- I of the bottle, the top of the pourlng flange extendingabove the top of the cap-securlng flange a distance greater thanthethickness of either flange, of a slightly flexible fiber cap having acircular center and an annular the rim of which enters the annul'archannel and place and the bottle sealed without deforming either it orthe bottle by engaging when seated both the outer wall of the innerflange and the inner wall of the outer flange, substantially as and forthe purpose descrrbed.

In witness whereof, I have hereunto set holds the cap securely 1n myhand and aflixed my seal, this ninth day of April, A. 1);.1917.

' WILLIAM J. DAVIS. [11. 5.

Witness:

JOHN HOWARD MoELRoY.

